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Finding the Fourth Proportional to 6,995.73, 10,487.16 and 6,386.97

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Solution

The fourth proportional to 6,995.73, 10,487.16 and 6,386.97 is: 9,574.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,995.73 : 10,487.16 = 6,386.97 : x
  2. Step 2: Convert to fraction form
    6,995.73/10,487.16 = 6,386.97/x
  3. Step 3: Cross multiply
    6,995.73x = 10,487.16 × 6,386.97
  4. Step 4: Simplify right side
    6,995.73x = 66,981,176.31
  5. Step 5: Solve for x
    x = 66,981,176.31/6,995.73
  6. Step 6: Final answer
    x = 9,574.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.